Information Technology IT – 14 Communications technology | e-Consult

To implement a secure wireless network, the network administrator should follow these steps:

1. Choose WPA3 (if available): WPA3 is the most secure wireless protocol currently available and should be prioritized if all devices support it. It offers significant improvements in security over WPA2, including stronger encryption and protection against brute-force attacks.
2. If WPA3 is not available, use WPA2 with AES encryption: WPA2 with AES is a strong and widely supported option. Avoid using WPA with TKIP, as it is considered outdated and vulnerable.
3. Strong Password: Use a strong, unique password for the wireless network. The password should be at least 12 characters long and include a mix of uppercase and lowercase letters, numbers, and symbols. Avoid using easily guessable passwords like "password" or "123456".
4. Disable SSID Broadcast: Disabling SSID broadcast can make the network less visible to attackers, although it's not a strong security measure on its own.
5. MAC Address Filtering (Use with Caution): MAC address filtering can restrict access to only devices with pre-approved MAC addresses. However, it can be easily bypassed by MAC address spoofing, so it's not a reliable security measure on its own.
6. Enable RADIUS Authentication: RADIUS (Remote Authentication Dial-In User Service) authentication provides a centralized and secure way to manage user authentication. This allows the administrator to control access to the network and track user activity. It's particularly useful in larger organizations. RADIUS can integrate with existing directory services (like Active Directory) for user authentication.
7. Regular Security Audits: Conduct regular security audits to identify and address any vulnerabilities in the wireless network. This includes checking for outdated firmware, weak passwords, and unauthorized access points.

RADIUS Authentication Table: